| 摘要 |
<p>A circuit arrangement for selective powering of distributed loads (D1-D7, 220-226, 213a-213e) is provided, comprising a plurality of load segments (10, 20, 30, 40, 50, 60, 70), each being electrically connected to at least one supply terminal al for receiving a variable voltage, wherein each load segment (10, 20, 30, 40, 50, 60, 70) comprises at least a load unit (D1-D7, 220-226, 213a-213e) and a proximity sensor unit (11), coupled with said load unit and comprising at least a reactive device (L1-L7, L1a-L7a, C1-C7, C1a-C7a, 214a-214e, 215d) having a reactance, said reactance depending on the proximity of a detection object (100, 102). In order to provide a simple and accurate way for user interactive powering of loads (D1-D7, 220-226, 213a-213e), during operation an operating voltage is provided to at least one load unit (D1-D7, 220-226, 213a-213e), depending on the reactance of at least one reactive device (L1-L7, L1a-L7a, C1-C7, C1a-C7a, 214a-214e, 215d) of said load segments (10, 20, 30, 40, 50, 60, 70), so that said operating voltage depends on the proximity of said detection object (100, 102).</p> |
